Manifold-book



c. w; P0TTER- MANIFOLD BOOK. APPLICATION FILED AUG` 25, 1919.

Patented June 28, 1921.

PATENT OFFICE.

CHARLES W. POTTER, OF WALT-IAM, MASSACHUSETTS.

Specification of Letters Patent.

MANFOLlJ-BOOK.

Patented June 22, 1.921.

Application filed August 25, 1919. Serial No. 319,612.

l/ 1o all whom it may concern:

Be it lrnown that l, CHARLES W. Po'rrnn, a citizen of the United States. residingat Valtham` in the county of hliddlesexV and State of h'fassachusetts, have invented a new and 'useful Improvement in Manifoldoolrs, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to manifold books and particularly to that class of manifold books comprising a cover or holder and a separable or removable pad or body of leaves such as are used for salesboolrs, order books and similar purposes, in which the covers are used continuously and the pads renewed when used up.

l-leretofore in the use of such books, it has been customary to provide a carbon sheet which has generally been pasted or secured at one edge to the edge of a piece of heavier cardboard or paper stock such as tag-stock, the latter being inserted between the baclr' of the pad of leaves and the cover and the former being turned over and inserted between the top leaf of the pad and the leaf next underneath. After the carbon sheet has been used up it and the tag-stock holder are thrown away. This practice involves the operations of cutting the tagstock the desired site and pasting the carbon sheets thereto and later the waste of the tag-stock.

The main object ofmy invention is to provide a manifold boolr in which the cover has permanent provision lfor removably holding a carbon sheet.`

Another object of the invention is to pro vide holding means which is efficient and simple in construction and operation so that the carbon sheet is held at all times securely against displacement and yet may be easily and expeditiously inserted and removed.

A further object is to eliminate the process of pasting the ca rbons to the sheets of tag-stock and the waste of that stock and thereby reduce the cost of production of such books.

Other objects of the invention will be more specifically described and pointed out hereinafter.

In the accompanying drawings illustrating the preferred embodiment of my invention, Figure l is a view in perspective of a manifold b'oolr embodying my invention, the cover being shown in an open position and a portion of the top leaf of the pad being cut away to show thecarbon sheet; Fig. 2 is a cross-sectional view on line 2-2 in Fig. l; Fig. 3 is a plan view of the means for holding the carbon sheet and a portion of the cover adjacent thereto showing the carbon sheet in position; Fig. tis a plan view, on an enlarged scale, of one means for fastening the holding means and F ig. 5 is a longitudinal view on lino 5-5 in Fig. el.

Referring to the drawings and particularly to Fig. l, l() designates the holder or cover of the book which may be made of various material, such as cardboard, lea-ther or cloth or of metal covered with leather or cloth. As shown the cover is made double with two leaves l0 and l2 united by flexible material la which acts as a hinge, but if desired, the cover 10 may be secured singly.

i6 represents a pad or body of leaves bound together at one end by wire stitching (not shown) or in any other suitable manner. The pad may be made up in any suit able manner but generally composed of original and duplicate sheets alternating, the original sheet receiving the writing which is transmitted to the duplicate sheet by a carbon interposed between the two. The cover l0 is provided with any suitable mea-ns foi holding the pad such as a spring clamp 18 of well known form permanently fastened to the cover. `The clamp i8 is opened up to permit theinsertion or removal of a pad through the medium of a turned-up por tion or finger-piece 20. To prevent lateral displacement of the pad and to protectthe carbon sheet 22, the cover l() may be provided with an upright flange 24 extending partially along one side.

The main feature of my invention resides in the provision of means permanently secured to the cover for holding the carbon sheet andin the drawings is shown one form of this means. Two spring strips 26 and 28 are fastened to one end thereof in a superposed relation to the cover l() at or near the top by eyelets 30, 30, or in any other suit-r able manner. The spring strips maybe made of steel, whalebone,` composition or other material which is flexible and which, when bent and released, will return to a normal. straight position. The carbon sheet is inserted at one edge between the two strips 26 and 28 and is held by them.

.lf desired, means may be provided for locking the ends of the strips 26 and 28 together and the use of such means may be found necessary in connection with books of extreme length employing` a comparatively long and narrow carbon sheet. Various means may be utilized for this purpose and one such means is shown in the drawings comprising a tongue and slot arrangement. ,ls-leer its free end, the strip 28 is provided lwith a struck up tongue 32 and the strip 2G with a rectangular slot of a dimension sulliciently large to receive the tongue The slot is so located (see Fig. 5) that the tongue T32, when in the slot, overlaps and holds down the end of the strip 26,

The locking or unlocking of the strips is easily accomplished by merely bending the two strips `upwardly together until the tongue on the strip 28 registers with the slot the strip 26, when, if they are to be locked together they are pressed together and returned'to a straight position under pressure, or if they are to be unlocked, they are then separated.

ln the use of my book the carbon sheet 22 may be arranged in the holding means either before or after the pad 16 has been placed in the clamp 18, but if the pad is present, it is merely turned upwardly and toward the part 12 of the cover in order to give access to the holding means. rllhe strips 26 and 28 beine' unlocked are separated and the edge or the carbon sheet is inserted between the two strips which are then pressed together and locked by bendingr or in any other suitable manner. Alfter the edge of the carbon. sheet is locked, the hody of the sheet is then turned back over the top strip 26 and the pad 16 is then inserted in the clamp or if present is turned downwardly upon the cover 10 and the body of the-carbon sheet is laid between the top leaf of the pad and the leaf next underneath.. lifter the top leaf has heen written upon and trie writingreproduced on the duplicate sheet through the medium of the carbon sheet, the two leaves then separated from the pad at the perforated line The third sheet of the pad which has thon become the top sheet is lifted up and the carbon s .eet dropped upon the next sheet wl .c A andthe top sheet is then returned to a flat position onthe carhon. This process is repeated until the pad is entirely used up when the stub of the pad is removed from the clampslv anc. a new pad inserted, lNhen the carbon sheet is used up, the two strips 26 and 28 are unlocked, the carbon removed and a new -carbon inserted and the strips locked.

twill be 'observed that in practice, the carbon sheet is also held to some extent by the pas mail, eine@ um Carbon is aldea back over the strip and is held by the weighty i originally was the fourth sheetV weaves of the pad. 1 have found that in hooks ot short l 5th, the carbon sheet is held securely by the strips and 28 without re- Quirino` lockingv means but for hooks of ter length the locking; means are desiranle and insure a perfect hold.

rllhe use of invention has the advantwe of providing` positive means for holding; the caroon sheet in a manifold hook in proper relation at all times with the pad and rehy insures the securing` of good carbon e pies on the second sheets. lt also entails considerable savingv in labor and material since the tan-stock and the pasting of the carbon sheets thereto are entirely eliminated.

llilhat l claim is 1- 1. cover for a manifold book provided with, means for holdingN a pad of leaves and with a pair of flexible strips secured tonether and to said cover at one end thereof and adapted to hold one edge of a carbon sheet between them, one of said strips having' a recess adjacent its free end and the other of said strips having a struck up tongue adjacent its free end adapted to ensaid recess for locking the two strips together.

2. A manifold book having', in combination, a cover, a clamp secured to said cover, a pad or" leaves held at one end by said clamp, a pair of flexible strips for holding` one edge-of a carbon sheet between them, said strips heine` secured together and to the cover one end thereof, said strips bein@1 so located as to be underneath said pad when said pad is in its normal position and a car aon sheet having one end held between said two strips, said carbon sheet being turned over between said stripsand said pad then up over one'edge of said pad in position to he interposed between the adjacent leaves of said pad. i

A. manifold book having, in combination, cover, a pad of leaves, means for removably securing said pad within said cover and a pair of thin flexible strips arranged between. said pad and cover for holding one edfe of a carbon sheet between them, said strips heine' secured together and to the cover at one end only thereof.

(1. A manifold hook having', in combination, a cover, e clamp secured to said cover, a nad of leaves removably held at one end hy said clamp and a pair of flexible strips ,r holding' one edge of a carbon sheet he- .en them by friction; said strips being,r secured together and to the cover at one end only 'thereof and beingl so located as to be underneath said pad when said pad is in nor- CHARLES W. POTTER. 

